Aerospace Manufacturer, Ireland

Precision grout and high-performance mortar from Fosroc used for base under 20 tonne robots


The client, a Belfast-based aerospace manufacturer, operates an advanced automation process and state of the art robotics to construct aeroplane parts, fuselages and wings. The giant automated robots that build the jets run on long tracks to accommodate dynamic load movements and weigh-in at a massive 20 tonnes each. An experienced team of building material experts was needed to ensure the suitability, quality and longevity of the ground base preparation underneath the robots.

As a leader in their field, Irish family-owned construction contractor John Sisk & Son was brought in to prepare the channels for the robot tracks, which required highly specialised materials to meet the required quality criteria. The material properties also needed to support a rapid application process to keep machine downtime to a minimum.


Fosroc’s Conbextra BB92 was applied to the channel first, at a depth of 50mm. The BB92 product’s high flow and early strength characteristics make it the ideal choice for ease of application and to withstand dynamic load pressures and wear and tear. It is also designed to resist any shrinkage to maintain original form and integrity. Next, Fosroc’s high performance concrete repair mortar Paveroc was applied to the top 60mm. This also has early strength capabilities for fast and effective application and can be trowel finished for a smooth end result.



John Devaney, Site Agent at Sisk was pleased with the selection of products used from Fosroc, commenting “I’m delighted with all the products’ performance characteristics, which matched those outlined on the data sheets. Fosroc offered excellent technical help and advice all the way through the process.”

Due to the rapid completion of the work on the channel preparation, the client was able to get production up and running with minimal disruption, and the assurance of quality construction work based on innovative, accredited building material technologies from Fosroc.

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